Coil holder



Oct. 6, 1953 A, L, wlNKLE-R 2,654,550

COIL HOLDER Filed Nov. 9, 1950 2 Sheets-Sheet l Oct. 6, 1953 A. WINKLER 2,654,550

COIL HOLDER Filed Nov. 9, 1950 2 Sheets-Sheet 2 2 320 h 1W5: 26 25a 37 Q 30 I Z; "a?

Uih l agi Q 3529 36 Patented Oct. 6, 1953 UNITED STATES PATENT OFFICE COIL HOLDER Illinois Application November 9, 1950, Serial No. 194,855

9 Claims. 1

This invention relates to improvements in coil holders and its purpose is to provide a novel device for holding a coil of metal, such as steel strapping, wire and the like, during the operation of withdrawing the coiled material for use.

Holders for metal coils have heretofore been provided with removable side plates to permit coils of material to be placed upon the rotatable hubs of the holders but these devices have not been entirely satisfactory for the reason that they have not been capable of accommodating coils of different axial widths. The width of coils of metal strapping and the like may vary slightly due to irregularities in winding and there may be much greater variations in the widths of the coils placed on a holder due to the presence or absence of side disks of fiberboard or the like which sometimes form parts of the coil units. This variation has made it necessary at times to use different coil holders for coils of material of the same width and gauge.

The principal object of the present invention is to provide an improved coil holder which is adjustable to accommodate coils of different axial widths. Another object of the invention is to provide a coil holder having side plates which are relatively adjustable in their spaced relation to receive metal coils of varying widths, in combination with means for readily and accurately securing them in adjusted relation. Still another object of the invention is to provide a coil holder having two side plates, one of which is capable of being readily secured in any one of a plurality of predetermined positions spaced from the other side plate. Another object is to provide improved means for detachably securing a side plate on the hub of a coil holder. Other objects relate to various features of construction and arrangement which will appear more fully hereinafter.

The nature of the invention will be understood from the following specification taken with the accompanying drawings in which one embodiment of the invention, and modification of a portion thereof, are illustrated. In the drawings,

Figure 1 shows an edge elevation of a coil holder embodying the features of the present invention with the hub of the holder mounted upon a movable truck;

Fig. 2 shows an edge elevation of the hub portions of the coil holder illustrated in Fig. 1 when they are separated from each other;

Fig. 3 shows a vertical section taken transversely of the outer portion of the hub of the coil holder illustrated in Fig. 1 illustrating the relative positions of the parts after the outer side plate has been moved into interlocking engagement with the hub of the holder;

Fig. 4 is a sectional view similar to that of Fig. 3 illustrating the relative positions of the parts preliminary to effecting a relative rotation of the two side plates to effect the interlocking connection between the outer side plate and the hub which is illustrated in Fig. 3;

Fig. 5 shows an axial section taken on the line 5-5 of Fig. 3;

Fig. 6 shows an axial section taken on the line 6-8 of Fig. 4;

Fig. 7 shows a perspective view of the outer r end portion of the hub of the holder illustrating the slots of different lengths which are engaged by a locking pin; and

Fig. 8 shows an end elevation of a modified form of hub having an increased number of slots for effecting a greater variation in the spaced relation of the side plates of the holder.

As illustrated in Fig. 1, the improved coil holder H3 is shown as being mounted upon a truck or carriage ll having supporting wheels l2 and a foot I3 which are adapted to rest upon a floor or other support I 4. The truck H has an upstanding frame |5 provided with a handle We and with a transverse frame member I '6 on which the coil holder i6 is rotatably supported. The holder l0 may, of course, be otherwise mounted and it is ordinarily provided with a brake for controlling the rotation of the holder during the withdrawal of strip material or Wire therefrom.

The coil holder It comprises a hollow hub or drum H; which is adapted to receive a coil l9 formed of steel strapping, round wire, or other material, usually formed of metal, which is wound in a coil and which i placed upon the hub or drum [8 for the purpose of permitting the coiled material to be gradually withdrawn for use. The coil [9 may include side disks 2%} formed of nonmetallic material, such as fiberboard or the like, and these disks are usually attached to the metal coil to form a unit which is slipped on to the hub or drum N3 of the coil holder. This drum or hub has attached thereto or formed integrally therewith an inner circular side plate 2| against which the coil is adapted to seat and the hub or drum also carries an outer side plate 22 which is detachably mounted upon the hub or drum so that it may be withdrawn to permit the coil of material, with or without side plates, to be slipped on to the hub in the position which is shown particularly in Figs. 5 and 6.

The frame member is is provided with an enlarged boss 26 in which there is mounted a stationary shaft or spindle 25 arranged to project laterally from the member [5. The hub or drum I8 has an inner cylindrical cavity I'8a which receives the spindle 25 and two ball bearings units 26 are mounted between the spindle 25 and the bore of the hub or drum [8 so that the drum is freely rotatable about a horizontal axis. The two ball bearing units; 26 are-spaced. apart by asleeve 21 which fits over the spindle 25 and the ball bearing unit 26 at the outer end of the spindle 25 is retained in position against the sleeve 21 by means of a locking ring. 28 which detachably engages an annular groove formed in the spindle 25. The other? bear ing unit is held by the sleeve 21 against the end face of the boss 24 and it is retained in position with respect to the sleeve 21 by means. of. alocle ing ring 29 which bears against the end face of the ball bearing unit and interlocks with are annular groove formed in the outer wall of the bore 18a ofthe drum. In this-way the drum. I5 is held securely against.- a-Xial displacement-with. respect to the. supporting spindle about which it. revolves.

The outer end of. the hubor drum- I18 is: reducedin. diameter to.-form a. cylindrical axial.- pro jection. l-Bb which fits into the axial bore 22b; of the hub portion 22w of the outer side: plate. 22.. This side: plate is adapted tobe secured in: the innermost position shown in Figs. 3 and.5- wherein: the inner. surface of this side plate bears against the outermost surface of the coil. of material which. is mounted upon the drum. For the purpose of securing. the hub: portion: 22a of. theouter side plate on: the: part t3?)- of the drum, there is provided a locking device comprising a rod 313. whiclr is mounted toreciprocate in a cylindrical bore: l-Bc formed; in the'part. 18b of thedrums This rod'. has secured: in. the. outer: end thereof a transversely extending pin. 3| which isadapted. to engage either one oi two, transversely extending slots. 32 and 35 which are: formed in the outer end of. the part l8b: of the drum to extend. axially. inward from the-end faceofi the; part i 81), as shown particularly in. Fig. 7. The pinextends. inwardly into the cavity Mia of the. drum- ['8 andintoa centralbore 25a which. extends. inwardly from the outer end of. the:

spindle: 2-5. A coil. spring is mounted onthe rod: 3&within the:bore' 25a andlbearsv at its inner: end: against a collar 36: which is secured on. the rod 30. 133 a pin13'l; The outer: end of the spring; 35'bears against a collar- 38 which seats against the 'end face of the cavity tB-a of. the: drum. VSFitic'rv this arrangement, the spring. 35; tends normall-y to. move: the rod. 30 inwardly and to hold. the locking: pin- 3! in engagement with, one: on theiot-her: of. the transverse slots 3-2 and 33. The slot 33 is.- greater depth than the slot 32. sothatwhen: the: pin 3.1: occupies the slot. 33 the: outer side: plate: 22' may be moved inwardly to; engage a coil of. material of relatively narrow: such as one which is not provided with the.- side disks 2%). When the: side. disks are; present or the coil: is of unusual axial width for. any other reason, the; locking. pin 3]; may! engage the: slot. 32' of lesser. depth so that. the outer side plate 22 may be spaced: farther: fronm the: side plate 21.2. The. cavity 2210" in thehumportion. is normally'closed by'a: cap 4''! which is detachablyheld in place by spring fingers: 48* fricti'onallyengaging the annular wall of thecavity.

For the purpose of holding the pin 3| in engagementwith the selected slot of the part I81) 4 and to retain the hub portion 22a of the outer side plate in position on the hub or drum 18, there is provided a circular locking plate 40 which seats on the end wall 22d in the cylindrical cavity 220 formed in the outer end of the hub 22a of the outer side plate. This plate 40 is secured to this hub portion 22a by means of two" studs M which are: located? diametrically opposite to each other as illustrated in Figs. 3 and 4. The locking plate 40 is formed of hard steel or the like, to serve as a wear plate on the end. of the hub, and it is provided with two arcuate inwardly inclined tongues 46a which extend: partially aroundithe axial bore 221) and seat against cmrespond ihg inwardly inclined surfaces 22c which are formed by recesses in the end wall 22d. of the cavity 220. At the free ends of the tongues 40a, the locking plate is provided with 'openings or notches 4% which register with longitudinal grooves 22 formedin the hub porti'oni 2i2b to. receive the: projecting; ends of; the

locking. pin. 31 whenv this hub portion is. passed.

into: telescoping engagement with. the projection Iii-b of. the drum, as shown in Figs. 4. and: 6..

During; the: process of assembly, the openings. 40b and: the registering grooves 22; are. aligned with thelocking pin 3|. and -the. outer. side plate. 22 isthrusti onto. the part 18b of the drum, thus. causing. the ends of: the pin to pass. through. the. openings 40b and slots 22f until. the: parts are. inithe relative positions shown in Figs 4. and d. The outer side plate: is thenrotated in\a=- counterclochwiseditection,thereby causing, the pin 3.l-. to be thrust outwardly against.- the: compression; or the. spring 35s as its endportions-ride-over the. inclinedoam surfaces. formed. by the tongues 48w. 'Ehis oamming. action insures the location oftheside plate 22. in the desired position;- determined. by the slots 32 or 33? which are selected for engagement by the locking. pin, and. the rotation; of the side plate is continued. untilithe hub.- portion. 22a; reaches.- the position wherein further rotation is arrested bythe engagementofthe ends or the locleing pin with. thestuds art. As.- this condition is approached, the ends of the.- locking pin. 3t ride over small projections 480. which. are: formed in. the: plate? 40: to extend.- aid-- ally outward sothat when; the pin. 32k reachesthe: final. position. shownin Figs 3. and 5-, relative reverse rotation. oil the: side plates; is prevented. by the coaction ofthe projections 46c with: the pin.. It will. be understood that the: pin; all andtherod mare resiliently held by the. spring 35: during this: operation of assembly so that some yielding. of. therod 33} is permitted, but-the spring.- 35 should be'of'fsufficient strengthto maintain. the locking engagement oh the: pin. 3.4: with. the projections 4.01; during. the normala use of the holder in. efiecting. the withdrawal. of= coiled. material therefrom.

When. a coil of. material on the. drum t8 has been consumed and it is desired to remove. the outer plate 22 of. the holder to per-mite new coil. to be placed. in position on the drum, this-may be done by effecting. a. relative movement of the two plates 2!: and 22 in the.- reverse direction, whereupon; the pin 3-!- will move outwardly to a sumcient extent, as permitted by the spring 35', to. allow-"the." ends of the-pin: 31 to ride over the projectibns c, whereupon the: tongues @021 may be moved to a position wherein the pin 31" again registers-with the openings-46b so that the outer plate 2 2 and its hub 22 w may be withdrawn from engagement with the' portion 18b" of" the hub. or

In assembling the device, the pin 3| may, of course, be rotated with the rod 30 until it registers with the desired slot 32 or 33 so that when the pin is moved inwardly to the inner end of the slot by the action of the spring 35, the side plate 22 will be in engagement with the outer face of the particular coil of material which is then on the drum I8. If it be desired to construct the holder for use with coils of material varying widely in axial widths, a greater number of transverse slots might be formed in the outer end of the portion l 822 of the hub or drum l8, as shown in Fig. 8 where the outer end of a hub portion 44b, corresponding to the part l8b, is provided with four transverse slots 45, 46, 41 and 48 which have different depths measured endwise of the hub portion.

Although one embodiment of the invention and a modification of a portion thereof have been shown and described by way of illustration, it will be understood that the invention may be constructed in various other forms which come within the scope of the appended claims.

I claim:

1. A coil holder for metal coils comprising, a drum, a side plate having a hub portion mounted on said drum, a locking member carried by said drum and arranged to occupy different positions axially thereof, and means for interlocking said hub portion with said member in each of said positions of said member.

2. A coil holder for metal coils comprising, a drum, a side plate having a hub portion mounted on said drum, a locking member carried by said drum and arranged to occupy different positions axially thereof, and means operated by rotation of said hub portion on said drum for interlocking said hub portion with said member in each of said positions of said member.

3. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof,-a locking device carried by said drum and including a pin adapted to engage a selected one of said slots, and means for interlocking said hub portion with said pin to hold said hub portion on said drum.

4. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted onsaid drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, a locking device carried by said drum and including a pin adapted to engage a selected one of said slots, resilient means tending to hold said pin in engagement with the selected slot, and means for interlocking said hub portion with said pin to hold said hub portion on said drum.

5. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, a locking device carried by said drum and including a pin adapted to engage a selected one of said slots, and a locking plate attached to said hub portion and having a tongue adapted to interlock with said pin upon rotation of said hub portion on said drum.

6. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, a locking device carried by said drum and including a pin adapted to engage a selected one of said slots, resilient means tending to hold said pin in engagement with the selected slot, and a locking plate attached to said hub portion and having a tongue adapted to interlock with said pin upon rotation of said hub portion on said drum.

7. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, a looking device carried by said drum and including a pin adapted to engage a selected one of said slots, resilient means tending to hold said pin in engagement with the selected slot, and a locking plate attached to said hub portion and having a tongue adapted to interlock with said pin upon rotation of said hub portion on said drum, said hub portion and said locking plate having openings to receive the ends of said pin.

8. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, said drum having a reduced tubular extension at its outer end, a rod slidably mounted in said extension, a transverse locking pin carried by the end of said rod and adapted to engage a selected one of said slots, a spring mounted on said rod within said drum for retracting said rod to cause said pin to move to the bottom of the selected slot, said pin projecting transversely beyond said extension, and a locking plate secured to said hub portion and having arcuate tongues adapted to interlock with said pin.

9. A coil holder for metal coils comprising, a rotatable drum, a side plate having a hub portion mounted on said drum, said drum being provided with transverse slots of different depth extending inwardly from the outer end thereof, said drum having a reduced tubular extension at its outer end, a rod slidably mounted in said extension, a transverse locking pin carried by the end of said rod and adapted to engage a selected one of said slots, a spring mounted on said rod within said drum for retracting said rod to cause said pin to move to the bottom of the selected slot, said pin projecting transversely beyond said extension, a locking plate secured to said hub portion and having arcuate tongues adapted to interlock with said pin, and means for normally limiting the relative rotation of said drum and said hub portion.

ALVIN L. WINKLER.

References Cited in the file of this patent UNITED STATES PATENTS Number 

